阅读说明：本技术 具有高保持力的led连接器 (LED connector with high retention ) 是由 赵长江 姚泽林 于 2020-07-31 设计创作，主要内容包括：本发明提出了具有高保持力的LED连接器,包括壳体以及转动连接在所述壳体上的杆,导电端子和FFC/FPC分别插入至所述壳体内,所述杆和FFC/FPC相对的表面上分别设置第一粘结层和第二粘结层,保证了FFC/FPC的保持力,保证了连接的稳定性；同时设置有外壳,将杆安装在外壳上,从而保证了产品的结构强度,且能够实现杆被意外打开,进一步保证了FFC/FPC的保持力；此外,通过对导电端子的设计,实现端子与FFC/FPC之间正向力的同时,还能够实现附加悬臂与塑胶体之间的正向力。(The invention provides an LED connector with high retention, which comprises a shell and a rod rotationally connected to the shell, wherein a conductive terminal and an FFC/FPC are respectively inserted into the shell, and a first bonding layer and a second bonding layer are respectively arranged on the surfaces of the rod opposite to the FFC/FPC, so that the retention of the FFC/FPC is ensured, and the connection stability is ensured; meanwhile, the housing is arranged, and the rod is arranged on the housing, so that the structural strength of a product is ensured, the rod can be opened accidentally, and the holding force of the FFC/FPC is further ensured; in addition, through the design of the conductive terminals, the forward force between the terminals and the FFC/FPC is realized, and meanwhile, the forward force between the additional cantilever and the plastic body can also be realized.)

1. LED connector with high retention, characterized by comprising:

one end of each conductive terminal is in conductive connection with the cable, and the other end of each conductive terminal is in conductive connection with the FFC/FPC;

the shell is provided with a containing space for containing a plurality of conductive terminals, the conductive terminals are inserted into the containing space from one side of the shell, and adjacent conductive terminals are insulated;

the rod is provided with an opening state and a closing state, the rod is provided with a rotating shaft part, the rotating shaft part is rotatably arranged on the shell, the FFC/FPC is inserted into the accommodating space in the opening state by rotating the rotating shaft part, and the other end of the conductive terminal is in conductive connection with the FFC/FPC in the closing state;

the rod comprises a rod body, and a first bonding layer is arranged on the surface, facing the FFC/FPC, of the rod body; the rotating shaft part comprises cam parts which are convexly arranged at two sides of the width direction of the rod body, and the cam parts are arranged on the shell;

a second bonding layer is arranged on the surface of the FFC/FPC, which faces the rod body; when the lever is in a closed state, the first adhesive layer and the second adhesive layer are adhered to each other.

2. The high retention LED connector of claim 1, wherein the housing includes a front opening portion, a rear opening portion, two mounting side walls disposed opposite each other, and upper and lower walls disposed opposite each other; the front opening part is communicated with the rear opening part to form the accommodating space; the conductive terminal is inserted into the accommodating space through the front opening part, and the FFC/FPC is inserted into the accommodating space through the rear opening part; mounting grooves are formed in the two mounting side walls, and the cam parts are arranged in the mounting grooves.

3. The LED connector with high retention according to claim 2, wherein the cam portion includes a rotation receiving member and an opening prevention interference member; the rotation bearing piece is arranged on the shell, and when the rod rotates, the rotation bearing piece is a rotation fulcrum; the opening-preventing interference piece extends at one side of the rotation bearing piece, and when the rod is in a closed state, the opening-preventing interference piece extends along the advancing direction of the conductive terminal inserted into the accommodating space;

one end of each of the two mounting side walls, which is close to the rear opening, is bent by 90 degrees to form an interference wall, and the two interference walls extend towards the direction of mutual approaching; the inner side of the interference wall is convexly provided with an interference convex hull, and when the rod is in an open state, the interference convex hull and the anti-opening interference piece are mutually abutted.

4. The LED connector with high retention according to claim 2, wherein a plastic body is disposed in the accommodating space, the plastic body includes a first plastic body and a second plastic body, the first plastic body is a rectangular parallelepiped, the front and rear surfaces of the first plastic body are provided with insertion holes for spacing a plurality of conductive terminals, the second plastic body is integrally formed on the rear surface of the first plastic body, and the lower surface of the second plastic body is flush with the lower surface of the first plastic body; the two sides of the width direction of the first plastic body are convexly provided with plastic bosses, and the plastic bosses are arranged in the mounting grooves.

5. The high retention LED connector of claim 4, wherein the conductive terminal comprises a terminal plate and a terminal cantilever, the terminal plate comprises a soldering body and a positioning body, the soldering body extends outside the insertion opening and is conductively connected to the cable; the terminal cantilever is in suspension connection with the positioning body, when the rod is in a closed state, the terminal cantilever is in conduction connection with the FFC/FPC, and the terminal cantilever abuts against the upper surface of the second plastic body.

6. The LED connector with high retention according to claim 5, wherein the second plastic body defines a first receiving recess for receiving the FFC/FPC pad; the terminal cantilever comprises a cantilever body and a terminal contact head arranged at the end part of the cantilever body, and when the rod is in a closed state, the terminal contact head is in conductive connection with the FFC/FPC.

7. The high retention LED connector of claim 6, wherein an additional cantilever arm is further suspended below the cantilever body, the additional cantilever arm resting on the bottom wall of the first receiving recess when the lever is in the closed state.

8. The LED connector with high retention according to claim 6, wherein a plurality of receiving bosses are protruded from one end of the lever body facing the FFC/FPC, the receiving bosses are spaced apart from each other, the spacing between adjacent receiving bosses is a second receiving groove, and the first receiving groove and the second receiving groove form an assembly space for receiving the terminal suspension and the FFC/FPC.

9. The LED connector with high retention according to claim 8, wherein the receiving bosses extend along the direction of insertion of the conductive terminals, and a positioning shaft is disposed between adjacent receiving bosses; the tip of location body has the pivot constant head tank that is the L type, when rotating during the pole, the location pivot is followed the pivot constant head tank rotates.

10. The high retention LED connector of claim 9, wherein the end surface of the receiving boss near the positioning shaft and the surface of the receiving boss facing the FFC/FPC are eccentric surfaces.

Technical Field

The present invention relates to the field of connectors, and more particularly to an LED connector with high retention.

Background

When receiving/transmitting signals, the printed circuit board in the system and the electronic equipment needs to be connected with the outside of the substrate, but a certain distance exists between the printed circuit board and the substrate, and the connection needs to be realized by cables, usually by a multi-pin wire-to-board connector.

In order to ensure the holding force of the FPC, the common LED FPC connector is realized by adopting a cam mechanism, namely the FPC is inserted into the connector at present, and then the cam mechanism is closed to press the FPC downwards, so that the welding point on the FPC generates interference with the elastic arm of the conductive terminal to generate the holding force; the cam mechanism is assembled with the plastic body and does not have an external metal shell.

When the number of terminals of the conventional LED FPC connector is small, the holding force of the FPC is small, the connection stability cannot be guaranteed, and the product structure is weak due to the fact that no metal shell is arranged.

Disclosure of Invention

To solve the above problems, the present invention proposes a high-stability small-pitch board-to-board connector and a terminal thereof.

The main content of the invention comprises:

an LED connector with high retention force, comprising:

one end of each conductive terminal is in conductive connection with the cable, and the other end of each conductive terminal is in conductive connection with the FFC/FPC;

the shell is provided with a containing space for containing a plurality of conductive terminals, the conductive terminals are inserted into the containing space from one side of the shell, and adjacent conductive terminals are insulated;

the rod is provided with an opening state and a closing state, the rod is provided with a rotating shaft part, the rotating shaft part is rotatably arranged on the shell, the FFC/FPC is inserted into the accommodating space in the opening state by rotating the rotating shaft part, and the other end of the conductive terminal is in conductive connection with the FFC/FPC in the closing state;

the rod comprises a rod body, and a first bonding layer is arranged on the surface, facing the FFC/FPC, of the rod body; the rotating shaft part comprises cam parts which are convexly arranged at two sides of the width direction of the rod body, and the cam parts are arranged on the shell;

a second bonding layer is arranged on the surface of the FFC/FPC, which faces the rod body; when the lever is in a closed state, the first adhesive layer and the second adhesive layer are adhered to each other.

Preferably, the housing comprises a front opening part, a rear opening part, two opposite mounting side walls, and an upper wall and a lower wall which are opposite; the front opening part is communicated with the rear opening part to form the accommodating space; the conductive terminal is inserted into the accommodating space through the front opening part, and the FFC/FPC is inserted into the accommodating space through the rear opening part; mounting grooves are formed in the two mounting side walls, and the cam parts are arranged in the mounting grooves.

Preferably, the cam portion includes a rotation receiving member and an opening prevention interference member; the rotation bearing piece is arranged on the shell, and when the rod rotates, the rotation bearing piece is a rotation fulcrum; the opening-preventing interference piece extends at one side of the rotation bearing piece, and when the rod is in a closed state, the opening-preventing interference piece extends along the advancing direction of the conductive terminal inserted into the accommodating space;

one end of each of the two mounting side walls, which is close to the rear opening, is bent by 90 degrees to form an interference wall, and the two interference walls extend towards the direction of mutual approaching; the inner side of the interference wall is convexly provided with an interference convex hull, and when the rod is in an open state, the interference convex hull and the anti-opening interference piece are mutually abutted.

Preferably, a plastic body is arranged in the accommodating space, the plastic body comprises a first plastic body and a second plastic body, the first plastic body is a cuboid, insertion holes for spacing a plurality of conductive terminals are formed in the front surface and the rear surface of the first plastic body in a penetrating mode, the second plastic body is integrally formed on the rear surface of the first plastic body, and the lower surface of the second plastic body is flush with the lower surface of the first plastic body; the two sides of the width direction of the first plastic body are convexly provided with plastic bosses, and the plastic bosses are arranged in the mounting grooves.

Preferably, the conductive terminal comprises a terminal plate body and a terminal cantilever, the terminal plate body comprises a welding body and a positioning body, and the welding body extends to the outer side of the insertion hole and is in conduction connection with the cable; the terminal cantilever is in suspension connection with the positioning body, when the rod is in a closed state, the terminal cantilever is in conduction connection with the FFC/FPC, and the terminal cantilever abuts against the upper surface of the second plastic body.

Preferably, the upper surface of the second plastic body is provided with a first accommodating groove for accommodating the FFC/FPC bonding pad; the terminal cantilever comprises a cantilever body and a terminal contact head arranged at the end part of the cantilever body, and when the rod is in a closed state, the terminal contact head is in conductive connection with the FFC/FPC.

Preferably, an additional cantilever is further suspended below the cantilever body, and when the lever is in the closed state, the additional cantilever abuts against the bottom wall of the first accommodating groove.

Preferably, a plurality of accommodating bosses arranged at intervals are convexly arranged at one end of the surface of the rod body facing the FFC/FPC, the interval between every two adjacent accommodating bosses is a second accommodating groove, and the first accommodating groove and the second accommodating groove form an assembling space for accommodating the terminal cantilever and the FFC/FPC.

Preferably, the accommodating bosses extend along the insertion direction of the conductive terminals, and a positioning rotating shaft is arranged between every two adjacent accommodating bosses; the tip of location body has the pivot constant head tank that is the L type, when rotating during the pole, the location pivot is followed the pivot constant head tank rotates.

Preferably, the end surface of the accommodating boss close to the positioning rotating shaft and the surface of the accommodating boss facing the FFC/FPC are eccentric surfaces.

The invention has the beneficial effects that: the invention provides an LED connector with high retention, and the retention of an FFC/FPC and the connection stability are ensured by respectively arranging a first bonding layer and a second bonding layer on the opposite surfaces of a rod and the FFC/FPC; meanwhile, the housing is arranged, and the rod is arranged on the housing, so that the structural strength of a product is ensured, the rod can be opened accidentally, and the holding force of the FFC/FPC is further ensured; in addition, through the design of the conductive terminals, the forward force between the terminals and the FFC/FPC is realized, and meanwhile, the forward force between the additional cantilever and the plastic body can also be realized.

Drawings

FIG. 1 is a schematic view of the overall structure of the lever in a closed state according to the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention in the open state of the lever;

FIG. 3 is a schematic view of the overall structure with the injection molded housing removed;

FIG. 4 is a schematic structural view of the housing;

FIG. 5 is a schematic view of a rod configuration;

FIG. 6 is a schematic view of the assembly of the lever and the housing in the open state;

FIG. 7 is a schematic view of the assembly of the lever and the housing in the closed position;

FIG. 8 is a schematic structural view of a plastic body;

FIG. 9 is a schematic view of a conductive terminal;

FIG. 10 is a schematic view of the conductive terminal mated with the lever in the open state;

FIG. 11 is a schematic view of the conductive terminals mated with the posts in a closed position;

FIG. 12 is a schematic view of the conductive terminals disposed in the plastic body;

FIG. 13 is a schematic view of the conductive terminals disposed in the plastic body in an open state;

FIG. 14 is a schematic view of one viewing angle of the FFC/FPC;

FIG. 15 is a schematic view of another viewing angle of the FFC/FPC;

Detailed Description

The technical scheme protected by the invention is specifically explained in the following by combining the attached drawings.

Please refer to fig. 1 to 15. The invention provides an LED connector with high retention, which comprises a shell 1 and a rod 2 rotatably mounted on the shell, wherein the shell 1 is made of metal, such as an iron shell, and specifically, the shell 1 is enclosed by two opposite mounting side walls 13 and an upper wall 14 and a lower wall 15 which are opposite, namely, the shell is provided with a front opening part 11 and a rear opening part 12; a mounting groove 130 for mounting the rod 2 is formed in the mounting side wall 13, that is, the rod 2 can rotate in the mounting groove 130; the front opening part 11 is communicated with the rear opening part 12 to form an accommodating space 100; the conductive terminal 3 is inserted into the accommodating space 100 through the front opening 11, and the FFC/FPC4 is inserted into the accommodating space 100 through the rear opening 12; furthermore, the number of the conductive terminals 3 is plural, the conductive terminals are insulated from each other and independently placed in the accommodating space 100 of the housing 1, and the lever 2 has two states, namely, an open state and a closed state, in the open state, the FFC/FPC4 can be inserted into the accommodating space 100 through the rear opening portion 12, when the lever 2 is rotated, the FFC/FPC4 is conductively connected with the conductive terminals 3, and in order to ensure the holding force of the FFC/FPC, a first adhesive layer 26 is disposed on the surface of the lever 2 facing the FFC/FPC 4; meanwhile, a second adhesive layer 40 is provided on the surface of the FFC/FPC4 facing the lever 2; when the lever 2 is in the closed state, the first adhesive layer 26 and the second adhesive layer 40 are adhered and fixed to each other; in this embodiment, a double-sided tape is used for both the first adhesive layer 26 and the second adhesive layer 40.

In order to better insulate and mount the plurality of conductive terminals 3, a plastic body 5 is arranged in the housing 1, the plastic body 5 can independently arrange the conductive terminals 3, so that the conductive terminals are insulated from each other and arranged in the accommodating space 100, specifically, the plastic body 5 comprises a first plastic body 51 and a second plastic body 52, wherein the first plastic body 51 is a cuboid, the front surface and the rear surface of the first plastic body 51 are provided with insertion holes 510 for spacing the plurality of conductive terminals in a penetrating manner, the second plastic body 52 is integrally formed on the rear surface of the first plastic body 51, and the lower surface of the second plastic body is flush with the lower surface of the first plastic body 52; meanwhile, plastic bosses 511 are convexly arranged on two sides of the first plastic body 51 in the width direction, and the plastic bosses 511 are arranged in the mounting groove 130.

As can be seen from fig. 4 and 8, the mounting groove 130 is approximately T-shaped, and correspondingly, the plastic boss 511 is also approximately T-shaped, so as to fit the plastic body 5 into the housing 1; as can be seen from fig. 8, the end of the horizontal section of the mounting groove 130 is arc-shaped, and is adapted to the rod 2 for facilitating the rotation of the rod 2.

Another problem to be solved by the present invention is to prevent the lever 2 from being opened accidentally, and as shown in fig. 6 and 7, to solve this problem, the present invention is designed for the housing 1 and the lever structure, specifically, the lever 2 has a rotation shaft portion rotatably disposed in the mounting groove 130 of the housing 1, and by rotating the rotation shaft portion, the lever 2 can be changed from the open state to the closed state; further, the lever 2 includes a lever body 20, the first adhesive layer 26 is provided on a face of the lever body 20 facing the FFC/FPC, and the rotation shaft portion, which serves as a fulcrum of the rotation of the lever 2, includes cam portions 21 protrudingly provided on both sides in the width direction of the lever body 20, that is, the lever 2 is rotatably mounted in the mounting groove 130 by the cam portions 21; in order to prevent the lever 2 from being opened accidentally, the cam portion 21 includes a rotation receiver 210 and an opening prevention interference piece 211; the rotation receiving member 210 is installed in the installation groove 130 of the housing 1, as shown in fig. 5, the rotation receiving member 210 is a cylinder, the open-prevention interference member 211 is L-shaped and is integrally formed at one side of the rotation receiving member 210, and when the lever 2 is in a closed state, a horizontal section of the open-prevention interference member 211 extends along an advancing direction of the conductive terminal 3 inserted into the accommodating space 100, that is, the horizontal section of the open-prevention interference member 211 is located at a position below one side of the rotation receiving member 210; when the lever 2 rotates, the rotation receiving member 210 is a rotation fulcrum; the opening prevention interference piece 211 interferes with a structure provided on the housing to realize an accidental opening prevention.

Similarly, the end of the two mounting side walls 13 near the rear opening is bent by 90 degrees to form an interference wall 16, that is, the two interference walls 16 extend in the direction of approaching each other; an interference convex hull 160 is convexly arranged on the inner side of the interference wall 16, and when the lever 2 is in an open state, the interference convex hull 160 and the anti-opening interference piece 211 are abutted against each other; in order to ensure the reliability of the abutment between the two, the surfaces of the opening prevention interference piece 211 and the interference convex hull 160 are both concave arc surfaces.

Referring to fig. 9 to 13, one end of each of the plurality of conductive terminals 3 is conductively connected to the cable 7, and the other end thereof is conductively connected to the FFC/FPC 4; referring to fig. 1, fig. 2 and fig. 3, the conductive terminal 3 includes a terminal plate 30 and a terminal cantilever 31, the terminal plate 30 includes a welding body 300 and a positioning body 301, the welding body 300 extends outside the insertion opening 510 and is connected to the cable 7 in a conduction manner; as shown in fig. 1 and 2, in order to ensure the tight bonding between the plastic body 5 and the housing 1, an injection molding opening 17 is formed on the housing 1, so that the housing 1 and the plastic body 5 are firmly integrated into a whole, and the injection molding housing 6 can be formed by a secondary injection molding manner to coat the cable 7 and the conductive terminals 3.

The terminal cantilever 31 is suspended from the positioning body 301, when the lever 2 is in a closed state, the terminal cantilever 31 is conductively connected to the FFC/FPC4, and the terminal cantilever 31 abuts against the upper surface of the second plastic body 52.

In one embodiment, the upper surface of the second plastic body 52 is provided with a first receiving groove 520 for receiving the FFC/FPC4 pad, i.e., the soldering point 41; the terminal suspension 31 includes a suspension body 310 and a terminal contact 311 disposed at an end of the suspension body 310, wherein when the lever 2 is in a closed state, the terminal contact 311 is conductively connected to the solder joint 41 on the FFC/FPC 4.

Correspondingly, a plurality of accommodating bosses 22 are convexly arranged at intervals at one end of the surface of the rod body 20 facing the FFC/FPC4, the interval between adjacent accommodating bosses 22 is a second accommodating groove 220, and the first accommodating groove 520 and the second accommodating groove 220 form an assembling space for accommodating the terminal cantilever 31 and the FFC/FPC4, that is, a space is provided for interference between the terminal cantilever 31 and the FFC/FPC, and between the terminal cantilever 31 and the plastic body 5.

To ensure a positive force, an additional cantilever 312 is also suspended below the cantilever body 310, the additional cantilever 312 abutting against the bottom wall of the first receiving recess 520 when the lever 2 is in the closed state. Furthermore, one end of the additional cantilever 312 is connected to the cantilever body 310, and the other end of the additional cantilever 312 extends from back to front, that is, the additional cantilever 312 extends toward the opposite direction of the insertion of the conductive terminal 3, so that in the closed state, a forward force is generated between the cantilever body 310 and the FFC/FPC, and a forward force is also generated between the additional cantilever 312 and the first receiving groove 520, thereby ensuring the performance of the conductive terminal.

In one embodiment, please refer to fig. 10 and 11, the receiving bosses 22 extend along the insertion direction of the conductive terminals 3, and a positioning shaft 23 is disposed between adjacent receiving bosses 22; the end of the positioning body 301 has an L-shaped rotating shaft positioning slot 3010, and when the rod 2 is rotated, the positioning rotating shaft 23 rotates along the rotating shaft positioning slot 3010.

Furthermore, the end face of the receiving boss 22 close to the positioning rotation shaft 23, i.e. the first eccentric surface 24 and the surface of the receiving boss 22 facing the FFC/FPC4, i.e. the second eccentric surface 25, both the first eccentric surface 24 and the second eccentric surface 25 are eccentric surfaces, wherein the first eccentric surface 24 provides an avoiding space for inserting the FFC/FPC when the rod 2 is opened, and the rod 2 is in a closed state after the second eccentric surface 25 is inserted into the FFC/FPC, so that the welding point 41 of the FFC/FPC and the terminal contact point 311 are in close contact.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.